The aim of the study is to examine the effects of 12-week volleyball training on some conditional parameters in young female volleyball players. A total of 56 volleyball players with an average age of 16.94 +/- 1.16 years participated in this study, which was designed as a pretest-posttest, experimental-control group experimental design. The experimental group (n = 28) was included in volleyball training with an average intensity of 60-90% 4 days a week for 12 weeks, while the control group (n = 28) did not exercise and continued their daily life. Before and after the 12-week training program of the participants, flexibility, dynamic balance, active jump, squat jump, pro agility, 20 m sprint, standing long jump, 60 sec push-up and 60 sec shuttle measurements were taken. The data obtained from the study were analyzed using the Independent samples T test with the help of the SPSS 23 package program, and the T test for the comparison of dependent groups (Paired Samples). When the pre-test and post-test results of the athletes in the experimental and control groups were compared; It was determined that there was a statistically positive significant increase (p<0.05) in the experimental group's flexibility, right-left foot balance, standing long jump, 60-second shuttle, 60-second push-up, free jump and squat jump tests; In the control group, it was determined that there was a negative significant decrease (p<0.05). In addition, a negative significant decrease was found in the pro agility and 20 m Sprint tests of the experimental group (p<0.05), while a positive significant increase was found in the control group (p<0.05). As a result, it was determined that 12-week branch-specific technical and tactical volleyball training played a positive role in the improvement of the fitness performance of young female volleyball players.
